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Paper 2005/178
Analyzing Unlinkability of Some Group Signatures
Zhou Sujing and Lin Dongdai
Abstract
Miyaji et.al proposed a fully functional(i.e., satisfying unforgeability, exculpability,anonymity, traceability, unlinkability, and revocability.) group signature over only known-order groups, that is based only on Discrete logarithm related assumptions, specifically, multiple DLP they proposed in the same paper [MU04]. In this paper, we point out their scheme and an improved scheme [ZZW05] do not have unlinkability.
Note: Correct some errors and add in some new information.
Metadata
- Available format(s)
- Publication info
- Published elsewhere. Unknown where it was published
- Keywords
- Digital SignatureGroup Signature.
- Contact author(s)
- zhousujing @ is iscas ac cn
- History
- 2005-09-08: revised
- 2005-06-14: received
- See all versions
- Short URL
- https://ia.cr/2005/178
- License
-
CC BY